/* ============================================================
   觀測日誌（2026-09-23）lb-*；表單沿用 activities.css 的 af-*
   ============================================================ */
.lb-page { padding: var(--space-2xl) 0 var(--space-3xl); }
.lb-header { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-md); flex-wrap: wrap; }
.lb-tabs { display: flex; align-items: center; gap: 4px; border-bottom: 1px solid var(--color-border); margin: var(--space-md) 0 var(--space-lg); flex-wrap: wrap; }
.lb-tab { padding: 10px 16px; font-size: 0.86rem; color: var(--color-text-secondary); border-bottom: 2px solid transparent; margin-bottom: -1px; }
.lb-tab.is-on { color: var(--color-text); border-bottom-color: var(--color-accent); font-weight: 600; }
.lb-search { margin-left: auto; padding-bottom: 6px; }
.lb-search input { padding: 7px 12px; border-radius: 999px; border: 1px solid var(--color-border); background: var(--color-surface); color: var(--color-text); font-family: inherit; font-size: 0.8rem; width: 220px; max-width: 100%; }
@media (max-width: 640px) { .lb-search { margin-left: 0; width: 100%; } .lb-search input { width: 100%; } }

.lb-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: var(--space-md); }
@media (max-width: 640px) { .lb-stats { grid-template-columns: repeat(2, 1fr); } }
.lb-stat { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 14px 16px; display: flex; flex-direction: column; gap: 2px; }
.lb-stat b { font-size: 1.6rem; line-height: 1.1; }
.lb-stat b small { font-size: 0.9rem; color: var(--color-text-muted); font-weight: 500; }
.lb-stat > span { font-size: 0.74rem; color: var(--color-text-muted); }
.lb-mbar { display: block; height: 6px; border-radius: 999px; background: var(--color-surface-elevated); overflow: hidden; margin-top: 6px; }
.lb-mbar > span { display: block; height: 100%; background: linear-gradient(90deg, var(--color-amber), var(--color-rose)); }

.lb-messier { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 12px 16px; margin-bottom: var(--space-lg); }
.lb-messier summary { cursor: pointer; font-size: 0.88rem; font-weight: 600; }
.lb-messier summary small { color: var(--color-text-muted); font-weight: 500; margin-left: 6px; }
.lb-mgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(34px, 1fr)); gap: 4px; margin-top: 12px; }
.lb-m { --c: #8b85a5; aspect-ratio: 1; border-radius: 7px; display: flex; align-items: center; justify-content: center; font-size: 0.68rem;
    color: var(--color-text-faint); border: 1px solid var(--color-border-subtle); background: var(--color-bg); transition: transform var(--transition-fast); }
.lb-m b { font-weight: 600; }
.lb-m.is-seen { background: color-mix(in srgb, var(--c) 30%, transparent); border-color: var(--c); color: var(--color-text); box-shadow: 0 0 10px color-mix(in srgb, var(--c) 35%, transparent); }
a.lb-m:hover { transform: scale(1.12); }
.lb-m-g { --c: #c77dff; }
.lb-m-gc { --c: #ffd166; }
.lb-m-oc { --c: #74c0fc; }
.lb-m-en, .lb-m-rn, .lb-m-snr { --c: #ff7a8a; }
.lb-m-pn { --c: #63e6be; }
.lb-m-sc, .lb-m-ds, .lb-m-as { --c: #adb5bd; }
.lb-mlegend { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 10px; font-size: 0.7rem; color: var(--color-text-muted); }
.lb-mlegend span { display: inline-flex; align-items: center; gap: 5px; }
.lb-mlegend i { width: 10px; height: 10px; border-radius: 3px; background: var(--c); }

.lb-list { display: flex; flex-direction: column; gap: 8px; }
.lb-item { display: flex; gap: 14px; align-items: flex-start; padding: 14px 16px; background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); color: var(--color-text); transition: border-color var(--transition-fast); }
.lb-item:hover { border-color: var(--color-text-faint); }
.lb-item-date { flex: 0 0 52px; text-align: center; padding: 6px 0; border-radius: 10px; background: var(--color-surface-elevated); line-height: 1.1; }
.lb-item-date b { display: block; font-size: 1.3rem; }
.lb-item-date small { font-size: 0.64rem; color: var(--color-text-muted); }
.lb-item-body { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 6px; }
.lb-item-top { display: flex; align-items: center; gap: 8px; }
.lb-item-top h3 { margin: 0; font-size: 0.95rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lb-item-meta { display: flex; flex-wrap: wrap; gap: 4px 12px; font-size: 0.74rem; color: var(--color-text-muted); }
.lb-by { color: var(--color-text-secondary); font-weight: 600; }
.lb-item-social { font-size: 0.74rem; color: var(--color-text-muted); white-space: nowrap; }
.lb-tags { display: flex; flex-wrap: wrap; gap: 4px; }
.lb-tag { font-size: 0.7rem; padding: 2px 8px; border-radius: 999px; background: var(--color-surface-elevated); color: var(--color-text-secondary); white-space: nowrap; }
.lb-tag-deep_sky { background: rgba(199, 125, 255, 0.14); color: #c99dff; }
.lb-tag-planet { background: rgba(255, 209, 102, 0.14); color: #f0c24f; }
.lb-tag-moon, .lb-tag-sun { background: rgba(243, 159, 90, 0.14); color: var(--color-amber); }
.lb-tag-comet, .lb-tag-meteor { background: rgba(116, 192, 252, 0.14); color: #74c0fc; }
:root[data-theme="light"] .lb-tag-deep_sky { color: #7b3fbf; }
:root[data-theme="light"] .lb-tag-planet { color: #a07400; }
:root[data-theme="light"] .lb-tag-comet, :root[data-theme="light"] .lb-tag-meteor { color: #1d6fb0; }
.lb-lock { font-size: 0.74rem; color: var(--color-text-muted); }
.lb-vis { font-size: 0.72rem; padding: 1px 8px; border-radius: 999px; background: var(--color-surface-elevated); }
.lb-empty { text-align: center; padding: 48px 16px; color: var(--color-text-muted); background: var(--color-surface); border: 1px dashed var(--color-border); border-radius: var(--radius-lg); }
.lb-empty p { margin: 0 0 12px; }
.lb-pager { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: var(--space-md); font-size: 0.84rem; color: var(--color-text-muted); }

/* 詳細頁 */
.lb-detail { padding-top: var(--space-xl); }
.lb-back { margin-bottom: var(--space-md); }
.lb-d-head { display: flex; gap: 16px; align-items: flex-start; flex-wrap: wrap; margin: var(--space-md) 0; }
.lb-d-head > div:nth-child(2) { flex: 1; min-width: 220px; }
.lb-d-head h1 { font-size: 1.6rem; margin: 0 0 8px; line-height: 1.3; }
.lb-d-date { width: 68px; text-align: center; padding: 8px 0; border-radius: 14px; background: linear-gradient(160deg, var(--color-deep-purple), var(--color-deepest)); color: #fff; line-height: 1.15; }
.lb-d-date b { display: block; font-size: 1.7rem; }
.lb-d-date small { display: block; font-size: 0.66rem; opacity: 0.8; }
.lb-d-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px; font-size: 0.8rem; color: var(--color-text-secondary); }
.lb-d-author { display: inline-flex; align-items: center; gap: 6px; color: var(--color-text); font-weight: 600; }
.lb-d-author .avatar { width: 24px; height: 24px; }
.lb-d-actions { display: flex; gap: 8px; }
.lb-d-actions form { margin: 0; }
.lb-cond { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 8px; margin: var(--space-md) 0 4px; }
.lb-cond-item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 10px 12px; display: grid; grid-template-columns: auto 1fr; column-gap: 8px; align-items: center; }
.lb-cond-ic { grid-row: span 2; font-size: 1.3rem; }
.lb-cond-item b { font-size: 1rem; }
.lb-cond-item small { font-size: 0.68rem; color: var(--color-text-muted); }
.lb-src { font-size: 0.7rem; color: var(--color-text-faint); margin: 4px 0 var(--space-md); }
.lb-d-grid { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: var(--space-lg); align-items: start; margin-top: var(--space-md); }
@media (max-width: 900px) { .lb-d-grid { grid-template-columns: 1fr; } }
.lb-d-main { display: flex; flex-direction: column; gap: var(--space-md); min-width: 0; }
.lb-d-side { display: flex; flex-direction: column; gap: var(--space-md); }
.lb-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 16px 18px; color: var(--color-text); display: block; }
.lb-h2 { font-size: 0.98rem; margin: 0 0 12px; }
.lb-h2 small { color: var(--color-text-muted); font-weight: 500; font-size: 0.78rem; }
.lb-targets { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.lb-target { padding: 10px 0; border-top: 1px solid var(--color-border-subtle); }
.lb-target:first-child { border-top: none; padding-top: 0; }
.lb-target-top { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.lb-target-top b { font-size: 0.92rem; }
.lb-key { font-size: 0.7rem; color: var(--color-text-muted); font-family: ui-monospace, monospace; }
.lb-stars { margin-left: auto; letter-spacing: 1px; font-size: 0.82rem; }
.lb-stars i { font-style: normal; color: var(--color-text-faint); }
.lb-stars i.on { color: #ffc94d; }
.lb-target-notes { margin: 6px 0 0; font-size: 0.84rem; color: var(--color-text-secondary); line-height: 1.6; white-space: pre-line; }
.lb-side-title { font-size: 0.7rem; letter-spacing: 0.05em; color: var(--color-text-muted); margin-bottom: 6px; }
.lb-equip { margin: 0; font-size: 0.84rem; line-height: 1.6; }
.lb-link { font-size: 0.78rem; color: var(--color-accent); display: inline-block; margin-top: 6px; }
.lb-act:hover { border-color: var(--color-text-faint); }
.lb-gal { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
.lb-gal-item { position: relative; border-radius: var(--radius-md); overflow: hidden; aspect-ratio: 4 / 3; background: var(--color-bg); }
.lb-gal-item img { width: 100%; height: 100%; object-fit: cover; }
.lb-gal-item span { position: absolute; left: 0; right: 0; bottom: 0; padding: 14px 8px 6px; font-size: 0.72rem; color: #fff; background: linear-gradient(transparent, rgba(0,0,0,0.7)); }

/* 表單 */
.lb-loc-row { display: flex; gap: 8px; }
.lb-loc-row .af-input:first-child { flex: 1; }
.lb-loc-pick { flex: 0 0 200px; }
@media (max-width: 640px) { .lb-loc-row { flex-direction: column; } .lb-loc-pick { flex-basis: auto; } }
.lb-coords { margin-bottom: 4px; }
.lb-coords summary { cursor: pointer; font-size: 0.78rem; color: var(--color-text-muted); margin-bottom: 10px; }
.lb-cond-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: var(--space-md); }
.lb-cond-head .af-h2 { margin: 0; }
.lb-moon-preview { font-size: 0.82rem; color: var(--color-text-secondary); margin-right: auto; }
.lb-wx-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
@media (max-width: 640px) { .lb-wx-grid { grid-template-columns: repeat(2, 1fr); } }
.lb-wx { display: flex; flex-direction: column; gap: 4px; font-size: 0.74rem; color: var(--color-text-muted); }
.lb-wx-in { display: flex; align-items: center; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-bg); padding-right: 8px; }
.lb-wx-in input { flex: 1; min-width: 0; border: none; background: transparent; color: var(--color-text); padding: 8px 10px; font-family: inherit; font-size: 0.88rem; }
.lb-wx-in input:focus { outline: none; }
.lb-wx-in small { font-size: 0.7rem; color: var(--color-text-faint); }
.lb-dots { display: flex; align-items: center; gap: 6px; }
.lb-dots label { position: relative; cursor: pointer; }
.lb-dots input { position: absolute; opacity: 0; }
.lb-dots span { display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--color-border); font-weight: 600; font-size: 0.85rem; color: var(--color-text-secondary); }
.lb-dots input:checked + span { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-accent-text); }
.lb-dots input:focus-visible + span { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.lb-dots-clear { border: none; background: none; color: var(--color-text-faint); cursor: pointer; font-size: 1rem; padding: 4px 6px; }
.lb-t-add { display: flex; gap: 8px; margin-bottom: 12px; }
.lb-t-add .af-input { flex: 1; }
.lb-t-list { display: flex; flex-direction: column; gap: 8px; }
.lb-t-empty { font-size: 0.82rem; color: var(--color-text-muted); padding: 16px; text-align: center; border: 1px dashed var(--color-border); border-radius: var(--radius-md); }
.lb-t-row { border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-bg); padding: 8px 10px; }
.lb-t-main { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.lb-t-n { font-size: 0.72rem; color: var(--color-text-muted); width: 18px; text-align: right; }
.lb-t-nm { flex: 1 1 160px; min-width: 0; border: none; border-bottom: 1px solid transparent; background: transparent; color: var(--color-text); font-family: inherit; font-size: 0.9rem; font-weight: 600; padding: 4px 2px; }
.lb-t-nm:focus { outline: none; border-bottom-color: var(--color-accent); }
.lb-t-kind { padding: 4px 6px; border-radius: 6px; border: 1px solid var(--color-border); background: var(--color-surface); color: var(--color-text); font-family: inherit; font-size: 0.74rem; }
.lb-t-stars { display: inline-flex; }
.lb-t-star { border: none; background: none; cursor: pointer; font-size: 1rem; color: var(--color-text-faint); padding: 0 1px; }
.lb-t-star.on { color: #ffc94d; }
.lb-t-notes { width: 100%; margin-top: 6px; border: none; border-top: 1px dashed var(--color-border-subtle); background: transparent; color: var(--color-text-secondary);
    font-family: inherit; font-size: 0.82rem; padding: 6px 2px 0; resize: none; line-height: 1.5; }
.lb-t-notes:focus { outline: none; }
.lb-equip-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.lb-chip { padding: 4px 10px; border-radius: 999px; border: 1px dashed var(--color-border); background: transparent; color: var(--color-text-secondary); font-family: inherit; font-size: 0.74rem; cursor: pointer; }
.lb-chip:hover { border-color: var(--color-accent); color: var(--color-accent); }
.lb-gal-pick { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 8px; }
.lb-gal-opt { position: relative; border-radius: var(--radius-md); overflow: hidden; cursor: pointer; aspect-ratio: 1; border: 2px solid transparent; }
.lb-gal-opt input { position: absolute; top: 6px; left: 6px; z-index: 2; accent-color: var(--color-accent); width: 16px; height: 16px; }
.lb-gal-opt img { width: 100%; height: 100%; object-fit: cover; opacity: 0.7; transition: opacity var(--transition-fast); }
.lb-gal-opt span { position: absolute; left: 0; right: 0; bottom: 0; padding: 12px 6px 4px; font-size: 0.66rem; color: #fff; background: linear-gradient(transparent, rgba(0,0,0,0.75)); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lb-gal-opt:has(input:checked) { border-color: var(--color-accent); }
.lb-gal-opt:has(input:checked) img { opacity: 1; }
.lb-vis-seg { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 640px) { .lb-vis-seg { grid-template-columns: 1fr; } }

/* 共用小元件（詳細頁沒有載 activities.css） */
.lb-back { display: inline-flex; align-items: center; gap: 6px; font-size: 0.8rem; color: var(--color-text-secondary); }
.lb-back:hover { color: var(--color-text); }
.lb-back svg { width: 14px; height: 14px; }
.btn-danger:hover { border-color: var(--color-rose); color: var(--color-rose); }
.lb-card .markdown-body ul, .lb-card .markdown-body ol { padding-left: 1.5em; }
.lb-wx { min-width: 0; }
.lb-wx-in { min-width: 0; }
.lb-wx-in input { width: 100%; }